id	keyword
biotropia-217	npp
biotropia-217	model
biotropia-217	leaf
biotropia-217	carbon
biotropia-217	net
biotropia-217	primary
biotropia-217	co2
biotropia-217	production
biotropia-217	data
biotropia-217	photosynthesis
biotropia-217	temperature
biotropia-217	global
biotropia-217	national